EDP Sciences
Free access
Issue
A&A
Volume 400, Number 3, March IV 2003
Page(s) 1129 - 1144
Section The solar system
DOI http://dx.doi.org/10.1051/0004-6361:20030065


A&A 400, 1129-1144 (2003)
DOI: 10.1051/0004-6361:20030065

Symplectic integration of hierarchical stellar systems

H. Beust

Laboratoire d'Astrophysique de Grenoble, Université J. Fourier, BP 53, 38041 Grenoble Cedex 9, France
(Received 30 September 2002 / Accepted 19 December 2002)

Abstract
Symplectic integration has been used successfully for many years now for the study of dynamics in planetary systems. This technique takes advantage of the fact that in a planetary system, the mass of the central body is much larger than all the other ones; it fails if all massive bodies have comparable masses, such as in multiple stellar systems. A new symplectic integrator is presented that permits the study of the dynamics of hierarchical stellar systems of any size and shape, provided that the hierarchical structure of the system is preserved along the integration. Various application tests of this new integrator are given, such as the gap formation in circumbinary disks, the Kozai resonance in triple systems, the truncated circumbinary disk in the quadruple system GG Tauri, and the dynamics of the sextuple system Castor.


Key words: methods: N-body simulations -- methods: numerical -- celestial mechanics -- stars: binaries: general -- stars: circumstellar matter

SIMBAD Objects



© ESO 2003

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access.

An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account.
    In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.